Siste publikasjoner – 2009

Tambs K, Rønning T, Prescott CA, Kendler KS, Reichborn-Kjennerud T, Torgersen S, Harris JR.
The Norwegian Institute of Public Health twin study of mental health: examining recruitment and attrition bias.
Twin Res Hum Genet. 2009 Apr;12(2):158-68.

Nielsen CS, Staud R, Price DD.
Individual differences in pain sensitivity: measurement, causation, and consequences.
J Pain. 2009 Mar;10(3):231-7. Epub 2009 Jan 29. Review.

Corey LA, Kjeldsen MJ, Solaas MH, Nakken KO, Friis ML, Pellock JM.
The accuracy of self-reported history of seizures in Danish, Norwegian and U.S. twins.
Epilepsy Res. 2009 Mar;84(1):1-5. Epub 2009 Jan 6.

Mazzeo SE, Mitchell KS, Bulik CM, Reichborn-Kjennerud T, Kendler KS, Neale MC.
Assessing the heritability of anorexia nervosa symptoms using a marginal maximal likelihood approach.
Psychol Med. 2009 Mar;39(3):463-73. Epub 2008 May 19.

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Generell tvillingforskning

Harris JR, Magnus P, Tambs K.
The Norwegian Institute of Public Health twin program of research: an update.
Twin Res Hum Genet. 2006 Dec;9(6):858-64.

Harris JR, Magnus P, Tambs K.
The Norwegian Institute of Public Health Twin Panel: a description of the sample and program of research.
Twin Res. 2002 Oct;5(5):415-23. Review.
PMID: 12613498 [PubMed - indexed for MEDLINE]

Bergem AL.
Norwegian Twin Registers and Norwegian twin studies--an overview.
Twin Res. 2002 Oct;5(5):407-14. Review.

Magnus P, Harris JR, Nystad W, Tambs K.
What can twin research reveal about the causes of diseases?
Tidsskr Nor Laegeforen. 1999 Sep 20;119(22):3317-21. Norwegian.

Irgens LM.
Genetic epidemiology and twin research
Tidsskr Nor Laegeforen. 1999 Sep 20;119(22):3251. Norwegian.

Torgersen S.
Sampling problems in twin research.
J Psychiatr Res. 1987;21(4):385-90.

Magnus P, Berg K, Nance WE.
Predicting zygosity in Norwegian twin pairs born 1915-1960.
Clin Genet. 1983 Aug;24(2):103-12.

Kringlen E.
Norwegian twin registers.
Prog Clin Biol Res. 1978;24 Pt B:185-7.

Harvald B.
Twins in clinical genetics.
Tidsskr Nor Laegeforen. 1967 Mar 1;87(5):Suppl:475-7.

Mental helse, livskvalitet, spiseforstyrrelser

Battaglia M, Pesenti-Gritti P, Medland SE, Ogliari A, Tambs K, Spatola CA.
A genetically informed study of the association between childhood separation anxiety, sensitivity to CO(2), panic disorder, and the effect of childhood parental loss.
Arch Gen Psychiatry. 2009 Jan;66(1):64-71.

Kendler KS, Aggen SH, Czajkowski N, Røysamb E, Tambs K, Torgersen S, Neale MC,
Reichborn-Kjennerud T.
The structure of genetic and environmental risk factors for DSM-IV personality disorders: a multivariate in study.
Arch Gen Psychiatry. 2008 Dec;65(12):1438-46.
PMID: 19047531 [PubMed - indexed for MEDLINE]

Reichborn-Kjennerud T.
Genetics of personality disorders.
Psychiatr Clin North Am. 2008 Sep;31(3):421-40, vi-vii. Review.

Mazzeo SE, Mitchell KS, Bulik CM, Reichborn-Kjennerud T, Kendler KS, Neale MC.
Assessing the heritability of anorexia nervosa symptoms using a marginal maximal likelihood approach.
Psychol Med. 2009 Mar;39(3):463-73. Epub 2008 May 19.

Czajkowski N, Kendler KS, Jacobson KC, Tambs K, Røysamb E, Reichborn-Kjennerud T.
Passive-aggressive (negativistic) personality disorder: a population-based twin study.
J Pers Disord. 2008 Feb;22(1):109-22.

Torgersen S, Czajkowski N, Jacobson K, Reichborn-Kjennerud T, Røysamb E, Neale
MC, Kendler KS.
Dimensional representations of DSM-IV cluster B personality disorders in a population-based sample of Norwegian twins: a multivariate study.
Psychol Med. 2008 Nov;38(11):1617-25. Epub 2008 Feb 14.

Javaras KN, Laird NM, Reichborn-Kjennerud T, Bulik CM, Pope HG Jr, Hudson JI.
Familiality and heritability of binge eating disorder: results of a case-control family study and a twin study.
Int J Eat Disord. 2008 Mar;41(2):174-9.

Ørstavik RE, Kendler KS, Czajkowski N, Tambs K, Reichborn-Kjennerud T.
The relationship between depressive personality disorder and major depressive disorder: a population-based twin study.
Am J Psychiatry. 2007 Dec;164(12):1866-72; quiz 1924.

Battaglia M, Pesenti-Gritti P, Spatola CA, Ogliari A, Tambs K.
A twin study of the common vulnerability between heightened sensitivity to hypercapnia and panic disorder. Am J Med Genet B Neuropsychiatr Genet. 2008 Jul 5;147B(5):586-93.

Reichborn-Kjennerud T, Czajkowski N, Torgersen S, Neale MC, Ørstavik RE,
Tambs K, Kendler KS.
The relationship between avoidant personality disorder and social phobia: a population-based twin study.
Am J Psychiatry. 2007 Nov;164(11):1722-8.

Nes RB, Røysamb E, Reichborn-Kjennerud T, Harris JR, Tambs K.
Symptoms of anxiety and depression in young adults: genetic and environmental influences on stability and change.
Twin Res Hum Genet. 2007 Jun;10(3):450-61.

Battaglia M, Ogliari A, Harris J, Spatola CA, Pesenti-Gritti P,
Reichborn-Kjennerud T, Torgersen S, Kringlen E, Tambs K.
A genetic study of the acute anxious response to carbon dioxide stimulation in man.
J Psychiatr Res. 2007 Dec;41(11):906-17. Epub 2007 Jan 24.

Kendler KS, Myers J, Torgersen S, Neale MC, Reichborn-Kjennerud T.
The heritability of cluster A personality disorders assessed by both personal interview and questionnaire.
Psychol Med. 2007 May;37(5):655-65. Epub 2007 Jan 16.

Reichborn-Kjennerud T, Czajkowski N, Neale MC, Ørstavik RE, Torgersen S,
Tambs K, Røysamb E, Harris JR, Kendler KS.
Genetic and environmental influences on dimensional representations of DSM-IV cluster C personality disorders: a population-based multivariate twin study.
Psychol Med. 2007 May;37(5):645-53. Epub 2006 Nov 30.

Ørstavik RE, Kendler KS, Czajkowski N, Tambs K, Reichborn-Kjennerud T.
Genetic and environmental contributions to depressive personality disorder in a population-based sample of Norwegian twins.
J Affect Disord. 2007 Apr;99(1-3):181-9. Epub 2006 Oct 17.

Kendler KS, Czajkowski N, Tambs K, Torgersen S, Aggen SH, Neale MC,
Reichborn-Kjennerud T.
Dimensional representations of DSM-IV cluster A personality disorders in a population-based sample of Norwegian twins: a multivariate study.
Psychol Med. 2006 Nov;36(11):1583-91. Epub 2006 Aug 8.

Nes RB, Røysamb E, Tambs K, Harris JR, Reichborn-Kjennerud T.
Subjective well-being: genetic and environmental contributions to stability and change.
Psychol Med. 2006 Jul;36(7):1033-42.

Kendler KS, Aggen SH, Tambs K, Reichborn-Kjennerud T.
Illicit psychoactive substance use, abuse and dependence in a population-based sample of Norwegian twins. Psychol Med. 2006 Jul;36(7):955-62. Epub 2006 May 2.

Nes RB, Røysamb E, Reichborn-Kjennerud T, Tambs K, Harris JR.
Subjective wellbeing and sleep problems: a bivariate twin study.
Twin Res Hum Genet. 2005 Oct;8(5):440-9.

Reichborn-Kjennerud T, Røysamb E, Tambs K, Torgersen S, Kringlen E, Magnus P,
Harris JR.
Genetic and environmental influences on the association between smoking and panic attacks in females: a population-based twin study.
Psychol Med. 2004 Oct;34(7):1271-7.

Reichborn-Kjennerud T, Bulik CM, Sullivan PF, Tambs K, Harris JR.
Psychiatric and medical symptoms in binge eating in the absence of compensatory behaviors.
Obes Res. 2004 Sep;12(9):1445-54.

Reichborn-Kjennerud T, Bulik CM, Tambs K, Harris JR.
Genetic and environmental influences on binge eating in the absence of compensatory behaviors: a population-based twin study.
Int J Eat Disord. 2004 Nov;36(3):307-14.

Reichborn-Kjennerud T, Bulik CM, Kendler KS, Roysamb E, Tambs K, Torgersen S,
Harris JR.
Undue influence of weight on self-evaluation: a population-based twin study of gender differences.
Int J Eat Disord. 2004 Mar;35(2):123-32; discussion 133-5.

Røysamb E, Tambs K, Reichborn-Kjennerud T, Neale MC, Harris JR.
Happiness and health: environmental and genetic contributions to the relationship between subjective well-being, perceived health, and somatic illness.
J Pers Soc Psychol. 2003 Dec;85(6):1136-46.

Reichborn-Kjennerud T, Bulik CM, Kendler KS, Røysamb E, Maes H, Tambs K,
Harris JR.
Gender differences in binge-eating: a population-based twin study.
Acta Psychiatr Scand. 2003 Sep;108(3):196-202.

Sundet JM, Skre I, Okkenhaug JJ, Tambs K.
Genetic and environmental causes of the interrelationships between self-reported fears. A study of a non-clinical sample of Norwegian identical twins and their
families.
Scand J Psychol. 2003 Apr;44(2):97-106.

Reichborn-Kjennerud T, Stoltenberg C, Tambs K, Roysamb E, Kringlen E,
Torgersen S, Harris JR.
Back-neck pain and symptoms of anxiety and depression: a population-based twin study.
Psychol Med. 2002 Aug;32(6):1009-20.

Kringlen E.
Twin studies in psychiatry.
Tidsskr Nor Laegeforen. 1999 Sep 20;119(22):3322-8. Review.

Tambs K, Harris JR, Magnus P.
Genetic and environmental contributions to the correlation between alcohol consumption and symptoms of anxiety and depression. Results from a bivariate analysis of Norwegian twin data.
Behav Genet. 1997 May;27(3):241-50.

Gjone H, Stevenson J.
A longitudinal twin study of temperament and behavior problems: common genetic or environmental influences?
J Am Acad Child Adolesc Psychiatry. 1997 Oct;36(10):1448-56.

Gjone H, Stevenson J.
The association between internalizing and externalizing behavior in childhood and early adolescence: genetic of environmental common influences?
J Abnorm Child Psychol. 1997 Aug;25(4):277-86.

Tambs K, Harris JR, Magnus P.
Sex-specific causal factors and effects of common environment for symptoms of anxiety and depression in twins.
Behav Genet. 1995 Jan;25(1):33-44.

Gjone H, Stevenson J, Sundet JM.
Genetic influence on parent-reported attention-related problems in a Norwegian general population twin sample.
J Am Acad Child Adolesc Psychiatry. 1996 May;35(5):588-96; discussion 596-8.

Kringlen E.
Causes of serious mental disorders.
Tidsskr Nor Laegeforen. 1994 Apr 10;114(9):1058-61. Review.

Andrews G, Stewart G, Allen R, Henderson AS.
The genetics of six neurotic disorders: a twin study.
J Affect Disord. 1990 May;19(1):23-9.

Kringlen E.
The status of schizophrenia research.
Tidsskr Nor Laegeforen. 1978 Jan 20;98(2):65-9. Norwegian. No abstract available.

Kringlen E.
The problem of heredity and environment--illustrated by psychiatric twin- and adoptive studies.
Tidsskr Nor Laegeforen. 1972 Jan 10;92(1):6-10. Norwegian.

Svangerskap og perinatal helse

Grjibovski AM, Harris JR, Magnus P.
Birthweight and adult health in a population-based sample of Norwegian twins.
Twin Res Hum Genet. 2005 Apr;8(2):148-55.

Glinianaia SV, Magnus P, Harris JR, Tambs K.
Is there a consequence for fetal growth of having an unlike-sexed cohabitant in utero?
Int J Epidemiol. 1998 Aug;27(4):657-9.

Magnus P, Berg K, Bjerkedal T, Nance WE.
The heritability of smoking behaviour in pregnancy, and the birth weights of offspring of smoking-discordant twins.
Scand J Soc Med. 1985;13(1):29-34.

Golden WL.
Reproductive histories in a Norwegian twin population: evaluation of the maternal effect in early spontaneous abortion.
Acta Genet Med Gemellol (Roma). 1981;30(2):91-165.

Fysisk Helse

Pedersen OB, Svendsen AJ, Ejstrup L, Skytthe A, Harris JR, Junker P.
Ankylosing spondylitis in Danish and Norwegian twins: occurrence and the relative importance of genetic vs. environmental effectors in disease causation.
Scand J Rheumatol. 2008 Mar-Apr;37(2):120-6. Erratum in: Scand J Rheumatol. 2008
Sep-Oct;37(5):400.

Stubbe JH, Boomsma DI, Vink JM, Cornes BK, Martin NG, Skytthe A, Kyvik KO,
Rose RJ, Kujala UM, Kaprio J, Harris JR, Pedersen NL, Hunkin J, Spector TD, de
Geus EJ.
Genetic influences on exercise participation in 37,051 twin pairs from seven countries.
PLoS ONE. 2006 Dec 20;1:e22.

Lund MB, Kongerud J, Nystad W, Boe J, Harris JR.
Genetic and environmental effects on exhaled nitric oxide and airway responsiveness in a population-based sample of twins.
Eur Respir J. 2007 Feb;29(2):292-8. Epub 2006 Nov 1.

Bengtson MB, Rønning T, Vatn MH, Harris JR.
Irritable bowel syndrome in twins: genes and environment.
Gut. 2006 Dec;55(12):1754-9. Epub 2006 Sep 28.

Grjibovski AM, Magnus P, Midelfart A, Harris JR.
Epidemiology and heritability of astigmatism in Norwegian twins: an analysis of self-reported data.
Ophthalmic Epidemiol. 2006 Aug;13(4):245-52.

Kvestad E, Kvaerner KJ, Røysamb E, Tambs K, Harris JR, Magnus P.
Heritability of recurrent tonsillitis.
Arch Otolaryngol Head Neck Surg. 2005 May;131(5):383-7.

Kramer AA, Berg K, Nance WE.
Familial aggregation of congenital dislocation of the hip in a Norwegian population.
J Clin Epidemiol. 1988;41(1):91-6.

Nance WE, Corey LA, Boughman JA, Berg K, Magnus P.
Distribution of common eye diseases in the families of Norwegian twins.
Birth Defects Orig Artic Ser. 1982;18(6):669-78.

Naess K.
Individual variations in drug metabolism. Important investigations in twins
Tidsskr Nor Laegeforen. 1971 Feb 28;91(6):446-7.

Degnbol B.
Heredity in diabetes mellitus.
Tidsskr Nor Laegeforen. 1967 Mar 1;87(5):Suppl:483-5.

SORENSEN EW.
Bechterew's disease in uniovular female twins.
Nord Med. 1960 Mar 31;63:394-5. Norwegian.

Fysisk helse – bmi, vekt og høyde

Perola M, Sammalisto S, Hiekkalinna T, Martin NG, Visscher PM, Montgomery GW,
Benyamin B, Harris JR, Boomsma D, Willemsen G, Hottenga JJ, Christensen K, Kyvik
KO, Sørensen TI, Pedersen NL, Magnusson PK, Spector TD, Widen E, Silventoinen K,
Kaprio J, Palotie A, Peltonen L; GenomEUtwin Project.
Combined genome scans for body stature in 6,602 European twins: evidence for common Caucasian loci.
PLoS Genet. 2007 Jun;3(6):e97. Epub 2007 May 2.

Sundet JM, Tambs K, Harris JR, Magnus P, Torjussen TM.
Resolving the genetic and environmental sources of the correlation between height and intelligence: a study of nearly 2600 Norwegian male twin pairs.
Twin Res Hum Genet. 2005 Aug;8(4):307-11.

Skytthe A, Pedersen NL, Kaprio J, Stazi MA, Hjelmborg JV, Iachine I, Vaupel
JW, Christensen K.
Longevity studies in GenomEUtwin.
Twin Res. 2003 Oct;6(5):448-54.

Harris JR, Tambs K, Magnus P.
Sex-specific effects for body mass index in the new Norwegian twin panel.
Genet Epidemiol. 1995;12(3):251-65.

Demens - Alzheimer

Blom ES, Holmans P, Arepalli S, Adighibe O, Hamshere ML, Gatz M, Pedersen NL,
Bergem AL, Owen MJ, Hollingworth P, Goate A, Williams J, Lannfelt L, Hardy J,
Wavrant-De Vrièze F, Glaser A.
Does APOE explain the linkage of Alzheimer's disease to chromosome 19q13?
Am J Med Genet B Neuropsychiatr Genet. 2008 Sep 5;147B(6):778-83.

Bergem AL, Lannfelt L.
Apolipoprotein E type epsilon4 allele, heritability and age at onset in twins with Alzheimer disease and vascular dementia.
Clin Genet. 1997 Nov;52(5):408-13. PubMed PMID: 9520135.

Bergem AL, Engedal K, Kringlen E.
The role of heredity in late-onset Alzheimer disease and vascular dementia. A twin study.
Arch Gen Psychiatry. 1997 Mar;54(3):264-70.

Bergem AL.
Heredity in dementia of the Alzheimer type.
Clin Genet. 1994 Jul;46(1 Spec No):144-9.

Breitner JC, Gatz M, Bergem AL, Christian JC, Mortimer JA, McClearn GE, Heston
LL, Welsh KA, Anthony JC, Folstein MF, et al.
Use of twin cohorts for research in Alzheimer's disease.
Neurology. 1993 Feb;43(2):261-7. Review.

Fysisk Helse - Hjerte-kar

Tambs K, Eaves LJ, Moum T, Holmen J, Neale MC, Naess S, Lund-Larsen PG.
Age-specific genetic effects for blood pressure.
Hypertension. 1993 Nov;22(5):789-95.

Berge KE, Berg K.
No effect of TaqI polymorphism at the human renal kallikrein (KLK1) locus on normal blood pressure level or variability.
Clin Genet. 1993 Oct;44(4):196-202.

Tambs K, Moum T, Holmen J, Eaves LJ, Neale MC, Lund-Larsen G, Naess S.
Genetic and environmental effects on blood pressure in a Norwegian sample.
Genet Epidemiol. 1992;9(1):11-26.

Berg K.
Risk factor variability and coronary heart disease.
Acta Genet Med Gemellol (Roma). 1990;39(1):15-24. Review.

Berg K, Kierulf P.
DNA polymorphisms at fibrinogen loci and plasma fibrinogen concentration.
Clin Genet. 1989 Oct;36(4):229-35.

Berg K.
Variability gene effect on cholesterol at the Kidd blood group locus.
Clin Genet. 1988 Feb;33(2):102-7. Erratum in: Clin Genet 1988 May;33(5):400.

Berg K.
Twin studies of coronary heart disease and its risk factors.
Acta Genet Med Gemellol (Roma). 1987;36(4):439-53.

Kessling AM, Berg K, Mockleby E, Humphries SE.
DNA polymorphisms around the apo AI gene in normal and hyperlipidaemic individuals selected for a twin study.
Clin Genet. 1986 Jun;29(6):485-90.
PMID: 3017614 [PubMed - indexed for MEDLINE]

Berg K.
Twin studies of coronary heart disease and its risk factors.
Acta Genet Med Gemellol (Roma). 1984;33(3):349-61.

Heiberg A, Magnus P, Berg K, Nance WE.
Blood pressure in Norwegian twins.
Prog Clin Biol Res. 1981;69 Pt C:163-8.

Astma

Nystad W, Røysamb E, Magnus P, Tambs K, Harris JR.
A comparison of genetic and environmental variance structures for asthma, hay fever and eczema with symptoms of the same diseases: a study of Norwegian twins.
Int J Epidemiol. 2005 Dec;34(6):1302-9. Epub 2005 Apr 14.

Harris JR, Magnus P, Samuelsen SO, Tambs K.
No evidence for effects of family environment on asthma. A retrospective study of Norwegian twins.
Am J Respir Crit Care Med. 1997 Jul;156(1):43-9.

Psoriasis

Grjibovski AM, Olsen AO, Magnus P, Harris JR.
Psoriasis in Norwegian twins: contribution of genetic and environmental effects.
J Eur Acad Dermatol Venereol. 2007 Nov;21(10):1337-43.

Olsen AO, Grjibovski A, Magnus P, Tambs K, Harris JR.
Psoriasis in Norway as observed in a population-based Norwegian twin panel.
Br J Dermatol. 2005 Aug;153(2):346-51.

Otitis Media

Kvestad E, Kvaerner KJ, Røysamb E, Tambs K, Harris JR, Magnus P.
Recurrent otitis media and tonsillitis: common disease predisposition.
Int J Pediatr Otorhinolaryngol. 2006 Sep;70(9):1561-8. Epub 2006 Jun 5.

Kvestad E, Kvaerner KJ, Røysamb E, Tambs K, Harris JR, Magnus P.
The reliability of self-reported childhood otitis media by adults.
Int J Pediatr Otorhinolaryngol. 2006 Apr;70(4):597-602. Epub 2005 Sep 6.

Kvestad E, Kvaerner KJ, Røysamb E, Tambs K, Harris JR, Magnus P.
Otitis media: genetic factors and sex differences.
Twin Res. 2004 Jun;7(3):239-44.

Kvaerner KJ, Tambs K, Harris JR, Magnus P.
Distribution and heritability of recurrent ear infections.
Ann Otol Rhinol Laryngol. 1997 Aug;106(8):624-32.

Kvaerner KJ, Tambs K, Harris JR, Magnus P.
The relationship between otitis media and intrauterine growth: a co-twin control study.
Int J Pediatr Otorhinolaryngol. 1996 Nov;37(3):217-25.

Kvaerner KJ, Tambs K, Harris JR, Mair IW, Magnus P.
Otitis media: relationship to tonsillitis, sinusitis and atopic diseases.
Int J Pediatr Otorhinolaryngol. 1996 Apr;35(2):127-41.

Epilepsi

Corey LA, Kjeldsen MJ, Solaas MH, Nakken KO, Friis ML, Pellock JM.
The accuracy of self-reported history of seizures in Danish, Norwegian and U.S. twins.
Epilepsy Res. 2009 Jan 5. [Epub ahead of print]

Nakken KO, Refsland G, Lillestølen KM, Solaas MH.
Seizure-precipitating factors in epilepsy--what do patients report?
Tidsskr Nor Laegeforen. 2005 Aug 25;125(16):2172-4.

Kjeldsen MJ, Corey LA, Solaas MH, Friis ML, Harris JR, Kyvik KO, Christensen
K, Pellock JM.
Genetic factors in seizures: a population-based study of 47,626 US, Norwegian and Danish twin pairs.
Twin Res Hum Genet. 2005 Apr;8(2):138-47.

Nakken KO, Solaas MH, Kjeldsen MJ, Friis ML, Pellock JM, Corey LA.
Which seizure-precipitating factors do patients with epilepsy most frequently report?
Epilepsy Behav. 2005 Feb;6(1):85-9.

Corey LA, Berg K, Pellock JM, Solaas MH, Nance WE, DeLorenzo RJ.
The occurrence of epilepsy and febrile seizures in Virginian and Norwegian twins.
Neurology. 1991 Sep;41(9):1433-6.

Smerte

Nielsen CS, Staud R, Price DD.
Individual differences in pain sensitivity: measurement, causation, and consequences.
J Pain. 2009 Mar;10(3):231-7. Epub 2009 Jan 29. Review.

Nielsen CS, Stubhaug A, Price DD, Vassend O, Czajkowski N, Harris JR.
Individual differences in pain sensitivity: genetic and environmental contributions.
Pain. 2008 May;136(1-2):21-9. Epub 2007 Aug 9.

Nielsen CS, Price DD, Vassend O, Stubhaug A, Harris JR.
Characterizing individual differences in heat-pain sensitivity.
Pain. 2005 Dec 15;119(1-3):65-74. Epub 2005 Nov 17.

Etikk

Harris JR, Willemsen G, Aitlahti T, Petrini C, Evans A, Silander K,
Cirrincione L, Kyvik KO.
Ethical issues and GenomEUtwin.
Twin Res. 2003 Oct;6(5):455-63.

Utdanning og sosioøkonomiske faktorer

Heath AC, Berg K, Eaves LJ, Solaas MH, Corey LA, Sundet J, Magnus P, Nance
WE.
Education policy and the heritability of educational attainment.
Nature. 1985 Apr 25-May 1;314(6013):734-6.